Pneumatic regulator.



A. P. GUSTAFSON. PNEUMATIC REGULATOR. APPLICIATION FlL ED 's n. 2|. 1914.

Patented 1m.11,1917.

a r orrro.

YADOLPH P. GUSTAFSON, or CHICAGO, ILLINOIS, assielvcn r sCHULz CoMrANY, or

' CHICAGO, ILLINOIS.

PNEUMATIC REGULATOR.

Specification of Letters Patent. Patented Dec, 7

Application filed September 21, 1914. Serial N 0. 862,663.

To all whom it may concern:

,Be it known that I, ADOLPH P. Gnsrnrson, a. citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement 1n Pneumatic Regulators, of which the following is a full, clear,

concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

. My invention relates to pneumatic regulators or governors for automatically regulating pneumatic pressure.

Prominent objects of the invention are to provide a simple and practical type of regulator; to secure sensitiveness and accuracy in regulation; to reduce the number of parts and obtain simplicity in construction; to secure reliability of action and prevent sudden action which would produce irregular operation of a device depending on the governor, and to secure the foregoing and other desirable results in a simple and practical manner.

In the accompanying drawings Figure 1 is a vertical section of a pneumatic regulator or governor embodying my invention taken on line 11in.Fig. 2; c

Fig. 2 is a section taken on line 2-2 in Fig. l;

Fig. 3 is a section taken on line 33 in Fig. l; and

Fig. 4 is a section taken on line 4:--4: in Fig.3.

The regulator shown comprises a stationary member-l which is understood to be suitably mounted or fixed ,in any desired position as by securing it to a vertical upright or support 2. A movable or swinging member 3 is secured to the member 1 by a hinge connection 4. A swinging block or lever 5 is pivoted between side blocks 66, a pin 7 serving to pivot the swinging member 5 in position between the blocks 6-6, the latter being secured to the swinging member 3 by screws 8-8. A spring 9is secured to the swinging member 5 as by screws 10-10, said spring 9 extending upwardly and making contact as at 11 (Fig. 1). with the fixed member 1. The swinging member 3 of the pneumatic carries a screw 12 whose inner end 13 is adapted to come into contact with the member 5.

A block 14 is secured to the base member 1 and provided with side ports 1515 and also with an interior. chamber 16 communieating with-said ports and also communicating with aduct or passage 18. which is un-' derstoodto lead to the wind inducing apparatus. valve device 20 is pivoted as by a screw ,21 to the side of the block 14, the valve 20 thus controlling the ports 15,15. Said valve 20 is provided with a projection 20 which is adapted to come into contact with the swinging member. 3 of the pneumatic or bellows whereby said member 3 tends to act upon and actuate said valve member 20. A'small wirespring 22 is desirably provided tending to hold the valve member 20 in a right hand position, (Fig. 1), that isa position to hold the ports 1515 open. A duct or passage25 is provided from the interior of the pneumatic to some other port or chamber or device whose wind supply is to be regulated. As shown, this duct I a motor which might be connected with the tube or pipe 29.

Thus it will be seen that the pneumatic pressure will be automatically regulated by the device, the bellows member 3 operating to act upon the valve 20 and more or less close 01? open the ports 1515. When there is increased tension, or in other words further reduction of air pressure communicated to the passage 18, the pneumatic will naturally be collapsed further, thereby causing the member 3. thereof toact upon the valve 20 and cause a further, closure of one or more of the ports 1515. This will thereby allow a less amount of communication through said ports of a greater degreev of tension, thereby reequalizing the increased tension. Conversely when a tension communicated to the passage 18 is reduced, the member 3 will tend to move outwardly or expand, thereby permitting the valve 20 to open the ports 1515 farther, and therebyallowing a greater communication to be established by such reduced pressure, whereby equalization may be effected. It will be seen that the screw 12 by acting upon the swinging member 5 and by having the spring 9 of considerable relative length, will give a very desirable and satisfactory sensitiveness of action, the leverage of the member 5 and spring 9 being such as to bring this about. It will also be seen that by having the valve 20 acted upon by the member 3, the sensitiveness and accuracy may be further increased, the adjustment of the valve efiecting only moderate opening and closing ac tion upon the ports 15-45, whereby the opening and closure of said ports will be ment as opposed to a separating movement,

further advantage in adjustment and regulation is secured. By having the valve 20 pivoted as a lever and acted upon by the memher 3 such adjustment as is desired may be secured, it being obvious that the regulation or position of the valve lever 20 and its pivot with reference to the member 3 and the point thereon where saidvalve lever makes contact, may be arranged as desired to suit various conditions and circumstances. The adjusting screw 12 may be adjusted from the outside of the device so as to vary the tension of the spring 9.

It will be understood that changes and modifications may be made without departing from the spirit of the invention.

What I claim is:

1. A pneumatic regulator comprising a collapsible device having a movable member,

a spring located within said device and acting upon said movable member to prevent collapse of the device, means for regulating thetension of said spring, said means extending through the wall of said movable member so as to be operable from the outside of the same, and a valve and valve seat-provided with a port controlled by said valve, said valve being arranged for actuation by said movable member.

2. A pneumatic regulator comprising a collapsible device having a movable member, a spring located within said device and arranged to act to prevent collapse on the part of said device, a screw extending through the wall of said device and arranged to control the tension of said spring, and a valve and ported valve seat located within said device and arranged to be actuated by said movable member.

3. A pneumatic regulator comprising a pneumatic having a swinging 'member, a

spring located within said pneumatic and combined with an adjusting screw passing throughsaid swinging member and co6perating with a pivoted block within the pneumatic to control the tension of said spring, a pivoted valve located within the pneumatic and having a projection contacting with said swinging member, and a valve seat provided with ports arranged to be controlled by said valve.

A. A pneumatic regulator comprising a collapsible device having a movable member, a spring located within said device, a swinging member interposed between said spring and said movable member, an adjustable abutment carried by said movable member and contacting with said swinging member, and a valve lever pivoted within said collapsible device and contacting with said movable member.

5. A pneumatic regulator comprising a collapsible device having a movable member,

a spring located within said device,'a swinging member interposed between said spring and said movable member, an adjustable abutment carried by said movable member and contacting with said swinging member, a valve lever pivoted within said collapsible device and contacting with said movable member, and a block also arranged within said collapsible device and provided with a plurality of ports controlled by said valve.

6. A pneumatic regulator comprising a collapsible pneumatic having a movable member, an adjusting screw passing through said member, a swinging member carried by the movable member of said pneumatic and contacting with the inner end of said adjusting screw, a valve spring located within said pneumatic and extending lengthwise underneath said movable member whereby said movable member acts upon said spring, a block provided with a plurality of side ports, a pivoted lever arranged lengthwise of the movable member of the pneumatic and having a projection contacting with the inner surface thereof, said lever being arranged to open and close said ports in said block in a shearing manner, and a spring controlling said valve lever.

In witness whereof, I hereunto subscribe my name this 15th dayof September, A. D.

ADOLPH P. GUSTAFSON. lVitnesses:

A. LYDA JON-Es, HAZEL A. JON-ES.

tlopies of this patent may be obtained for five cents each, by addressing the Commissionerof Fatents.

Washington, D. G. 

